By Nate Raymond and John Kruzel WASHINGTON (Reuters) – The investigation into the leak of a draft of last year’s Supreme Court ruling overturning the national right to abortion laid bare a persistent problem at the top U.S. judicial body and the broader federal judiciary – creaky tech systems and lax security protocols for handling sensitive documents. The inquiry, detailed in a 20-page report released on Thursday, failed to uncover who leaked the draft authored by Justice Samuel Alito to the news outlet Politico last May, a month before the ruling was formally issued – in part due to informat…